Oscillator and electronic apparatus
US11201588B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2020 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Dec 17, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An oscillator includes a resonator, a clock signal generation circuit, a clock signal output terminal, an external signal input terminal, an interface circuit, and an interface terminal. The clock signal generation circuit oscillates the resonator to generate a clock signal. The clock signal output terminal outputs the clock signal. An external signal is input to the external signal input terminal. The interface circuit outputs time difference information obtained by measuring a time difference between a transition timing of a first signal based on the external signal input from the external signal input terminal and a transition timing of a second signal based on the clock signal, or frequency information obtained by measuring a frequency of a first clock signal, which is one of the clock signal and the external clock signal, based on a frequency of a second clock signal, which is the other of the clock signal and the external clock signal. The interface terminal is coupled to the interface circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.